+--COMP:N-N(of)-+    
     +SUBJ:+-OBJ:V-N-+          +MOD_+    
     |     |         |          |    |    
 IGF 1 increases reduction of cell death .
SUBJ:V-N (increase,1)
OBJ:V-N (increase,reduction)
COMP:N-N(of) (reduction,death)
MOD_ATT:N-N (death,cell)